Zune 80 video causing noise.

[bugeyed]

I just got my Zune 80 hooked up to the rear A/V inputs on a Pioneer AVH-P3100DVD & the video is causing hum in the audio. If I turn off the video from the Zune it is quiet. As soon as I enable the video from the Zune I get the hum. It's loud enough to be unacceptable. My A/V cable has a ferrite on it before the L,R,V split out, but it doesn't seem to be helping. Where do I start looking for a solution? The hum is there with the Zune charging or on battery. I will try to hook it up to my TV & see if it is noisy, but any insight about this is appreciated.

Thanks,

kev

P.S. My head unit is well grounded & I get no hum from the audio-only front Aux. input. Only when I add video to the mix.

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